“Super Strong Nuclear Force” caused by migrating K- mesons

Toshimitsu Yamazaki and Yoshinori Akaishi RIKEN

Chiral07 Nov-15-2007, Osaka

ATOM MOLECULE

Proc. Japan Acad. B 83 (2007) 144 arXiv:0706.3651

arXiv:0709.0630

K-pp : basic building blockTest of Kbar nuclear physics

Predicted 2002 TY and Y. Akaishi, PLB 535 (2002) 70 BK = 48 MeV = 61 MeV strange di-baryon, Kbar cluster, kaonic nuclear hydrogen molecule Natural extension of K-p as (1405) K-pp, K-ppn, , based on the Akaishi-Y Kbar-N Interactions PRC 65 (2002) 044005

Starting ansatz:(1405) as “K-p atom” * decay channel Minv()* formation channel K- + p 27 MeV below threshold: not possibleHowever, one can tune K- + “p” in nuclei resonates in emulsion, in 4He (* dominant) but not in d

More evidence will be obtained (AMADEUS)

K- stopped in emulsion

Katz et al. PRD1 (1970)

K- in 4He

1405 dominance

Akaishi’s ATMS variational method: withelementary KN and NN interactions

K-p (*) “atom” persists in K-pp !--> molecule

Heitler-London (1927) for H-H Heisenberg (1932) for p-n He atom vs H2 molecule

Validity test onb, KN-hardcore, NN-hardcore

Starting ansatz (1405) --> robustly predicted K-pp

ATMS prediction for Kpp quite robust:consistent with

N.V. Shevchenko, A. Gal and J. Mares, arXiv:nucl-th/0610022.Y. Ikeda and T. Sato, HYP2006 contribution.

Kpp beyond the present approach1. Validity of the (1405) Ansatz2. Unknown interactions pertinent to 3

-body systems; p-wave, , ,3. KN interaction modified by chiral symmetry restoration, qua

rk structure, , , NN barrier weakened by Kbar ?

Yukawa’s strugglingin 1933

how can such a migrating real particle exist

in nuclei?Bose electron ?force range ? p + e- = n ?

Finally, in 1935, Yukawa arrived at virtual mediating

particle

a la K. Nishijima

The Yukawa theory A virtual particle mediat

es strong interaction mU/me ~ 200 The mesons discovere

d Fundamental concept i

n physics Heitler-London-Heisenberg scheme: completely abandoned ?

Nuclear density = constant Universal law ? Why ? saturationCommon nuclear force

A different N-N interaction would produce a different nuclear density --> different matter worldSuper Strong Nuclear Force

Range and Coherency of Kbar bondingYukawa coupling (virtual meson) range: short ~ 1/mB

saturation, constant nuclear densityKbar covalency (real Kbar: anti-u,d) large exchange energy

range: short - medium: ~ 1/BK ~ 1405 size

higher density, large coherency range Kpp Kppp Kpppp Akaishi, Dote KKpp KKppp Akaishi, Dote

migrating-K-

coherency length

Maybe ~5 (Dote)

With increasing K-

K-condensed matter:matter by coherently migrating K-

High density

Liquid, Solid?

Molecular structure revealedjustifies

(1405) as an atom doorway: seed

doorway: successive seed

* formation and propagation K- absorption: old evidence p-p reaction: predicted, prepared

K-pp formation

p + p --> K+ + p + * *p sticking --> K+ + K-pp: K-pp --> + p

How to prove the high density in Kbar nuclei ?

Conventional reactions: small sticking

Extraordinary sticking of * + p into K-pp ** short collision length of pp ** compactness of K-pp ** large momentum transfer

Predicted spectra

DISTOSaturne

p+p -> p++K+

@2.85 GeV

FOPI experimental proposalsimulation

Thank you very much